WM8940CGEFLSLASHRV datasheet(45/91 Pages) WOLFSON

部件名	WM8940CGEFL/RV

功能描述	Mono CODEC with Speaker Driver

PDF	91 Pages

Scroll/Zoom	100%

制造商	WOLFSON [Wolfson Microelectronics plc]

网页	http://www.wolfsonmicro.com

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45 / 91 page

Production Data

WM8940

PD, Rev 4.3, November 2011

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R24

DAC digital

limiter control 1

LIMEN

Enable the DAC digital limiter:

0=disabled

1=enabled

7:4

LIMDCY

0011

Limiter Decay time (per 6dB gain change)

for 44.1kHz sampling. Note that these will

scale with sample rate:

0000=750us

0001=1.5ms

0010=3ms

0011=6ms

0100=12ms

0101=24ms

0110=48ms

0111=96ms

1000=192ms

1001=384ms

1010=768ms

1011 to 1111=1.536s

3:0

LIMATK

0010

Limiter Attack time (per 6dB gain change)

for 44.1kHz sampling. Note that these will

scale with sample rate.

0000=94us

0001=188s

0010=375us

0011=750us

0100=1.5ms

0101=3ms

0110=6ms

0111=12ms

1000=24ms

1001=48ms

1010=96ms

1011 to 1111=192ms

R25

DAC digital

limiter control 2

6:4

LIMLVL

000

Programmable signal threshold level

(determines level at which the limiter

starts to operate)

000=-1dB

001=-2dB

010=-3dB

011=-4dB

100=-5dB

101 to 111=-6dB

WM8940CGEFL/RV 数据表(PDF) 45 Page - Wolfson Microelectronics plc

WM8940CGEFL/RV 数据表(HTML) 45 Page - Wolfson Microelectronics plc

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